May weather forecast
Naples, FL

The arrival of May in Naples marks the beginning of the pre-summer phase with hot and humid conditions. The days grow longer providing sizeable daylight hours for outdoor exploration. This month records the most drastic increase in rainfall, reaching a significant 2.09" (53mm). The bright, sunny days are further amplified by the continually warming sea water. The inherent humidity and rainfall in May make it a notable time for witnessing Florida's tropical climate.

Temperature

May observes an average high-temperature of a still moderately hot 84.4°F (29.1°C), marking an insignificant difference from April's 81°F (27.2°C). May sees the temperature falling to a mean low of 74.1°F (23.4°C).

Heat index

May's average heat index is appraised at a tropical 93.2°F (34°C). Additional precautions are required to avert heat cramps and heat exhaustion. Persistent activity may culminate in heatstroke.
Understand that the heat index values take into account shaded locations and mild winds. Direct sunlight might lead to a heat index increase by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'real feel', blends air temperature and moisture content to represent the felt temperature to humans. Physical activity, clothing, and metabolic variations are additional factors that impact an individual's perception of temperature. You should know that direct sun exposure can heighten weather effects, potentially elevating the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for babies and toddlers. Children often fail to understand the importance of rest and rehydration. Thirst is a late manifestation of dehydration - hence, it is crucial to stay hydrated, especially during ongoing physical activities.

Humidity

The average relative humidity in May is 73%.

Rainfall

In Naples, in May, during 15.3 rainfall days, 2.09" (53mm) of precipitation is typically accumulated. Throughout the year, there are 162.1 rainfall days, and 21.69" (551mm) of precipitation is accumulated.

Ocean temperature

In May, the average ocean temperature is 80.1°F (26.7°C).
Note: Water temperatures between 77°F (25°C) and 84.2°F (29°C) are regarded as highly pleasant, making all water activities enjoyable without any discomfort over long durations.

Daylight

The average length of the day in May is 13h and 26min.
On the first day of May, sunrise is at 6:49 am and sunset at 7:59 pm. On the last day of the month, sunrise is at 6:34 am and sunset at 8:15 pm EDT.

Sunshine

May and July, with an average of 11.1h of sunshine, are months with the most sunshine.

UV index

May through September, with an average maximum UV index of 7, are months with the highest UV index in Naples. A UV Index of 6 to 7 symbolizes a high health vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.
Note: In May, an average UV index of 7 transforms into the following instructions:
Follow precautions and abide by sun safety rules. Deterrence of sunburn is imperative. Stay in the shade and limit sun exposure from 10 a.m. to 4 p.m., when UV radiation is most potent. Keep in mind that shade structures like parasols or canopies do not offer full protection. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses. Notice! The Sun's UV exposure elevates with sand and water reflections.